Non-Compliance
Clean Water Act
SHEEP CREEK FIELD CHEYENNE
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- Address
-
(UNKNOWN ADDRESS)
(UNKNOWN CITY), WY 00000
View on map ↗ - County
- FREMONT County
- Inspections
- 1 · last Jan 30, 2024
- Total Penalties
- $0
- Registry ID
- 110055194882
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
8
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Effluent Violations - Numeric effluent violation | Mar 5, 2024 | — | Open |
| cwa | Reporting Violations - Failure to Submit DMRs | Mar 5, 2024 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | May 15, 2019 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | May 14, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Dec 27, 2016 | — | Open |
| cwa | Permit Violations - Unapproved Operation | Dec 27, 2016 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Oct 27, 2016 | — | Open |
| cwa | Schedule Event unachieved but reported | Apr 3, 2015 | Jul 3, 2015 | Resolved |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Solids, total dissolved | DMR, Limited - Numeric Violation | 5,060.00 mg/L | 5,000.00 | +1% | Dec 2025 | Open |
| Radium 226 + radium 228, total | DMR, Limited - Numeric Violation | 24.30 pCi/L | 5.00 | +386% | Dec 2025 | Open |
| Arsenic, total [as As] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +100% | Dec 2025 | Open |
| Produced water, oil and grease | DMR, Limited - Numeric Violation | 14.00 mg/L | 10.00 | +40% | Dec 2025 | Open |
| Radium 226 + radium 228, total | DMR, Limited - Numeric Violation | 10.90 pCi/L | 5.00 | +118% | Jun 2025 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 5,110.00 mg/L | 5,000.00 | +2% | Jun 2025 | Open |
| Arsenic, total [as As] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +100% | Jun 2025 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 3,110.00 mg/L | 3,000.00 | +4% | Jun 2025 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 5,370.00 mg/L | 5,000.00 | +7% | Dec 2024 | Open |
| Arsenic, total [as As] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +60% | Dec 2024 | Open |
| Produced water, oil and grease | DMR, Limited - Numeric Violation | 13.00 mg/L | 10.00 | +30% | Dec 2024 | Open |
| Radium 226 + radium 228, total | DMR, Limited - Numeric Violation | 22.30 pCi/L | 5.00 | +346% | Dec 2024 | Open |
| Radium 226 + radium 228, total | DMR, Limited - Numeric Violation | 13.90 pCi/L | 5.00 | +178% | Jun 2024 | Open |
| Arsenic, total [as As] | DMR, Limited - Numeric Violation | 0.05 mg/L | 0.01 | +360% | Jun 2024 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 5,560.00 mg/L | 5,000.00 | +11% | Jun 2024 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 3,450.00 mg/L | 3,000.00 | +15% | Jun 2024 | Open |
| Produced water, oil and grease | DMR, Limited - Numeric Violation | 12.00 mg/L | 10.00 | +20% | Feb 2024 | Open |
| Radium 226 + radium 228, total | DMR, Limited - Numeric Violation | 12.20 pCi/L | 5.00 | +144% | Jun 2023 | Open |
| Arsenic, total [as As] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +100% | Jun 2023 | Open |
| Arsenic, total [as As] | DMR, Limited - Overdue | 0.02 mg/L | 0.01 | +100% | Jun 2023 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 3,140.00 mg/L | 3,000.00 | +5% | Jun 2023 | Open |
| Radium 226 + radium 228, total | DMR, Limited - Overdue | 12.20 pCi/L | 5.00 | +144% | Jun 2023 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Overdue | 3,140.00 mg/L | 3,000.00 | +5% | Jun 2023 | Resolved |
| Arsenic, total [as As] | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.01 | +270% | Jun 2022 | Open |
| Sulfate, total [as SO4] | DMR, Limited - Overdue | 3,140.00 mg/L | 3,000.00 | +5% | Jun 2022 | Resolved |
| Sulfate, total [as SO4] | DMR, Limited - Numeric Violation | 3,140.00 mg/L | 3,000.00 | +5% | Jun 2022 | Open |
| Radium 226 + radium 228, total | DMR, Limited - Overdue | 13.50 pCi/L | 5.00 | +170% | Jun 2022 | Resolved |
| Radium 226 + radium 228, total | DMR, Limited - Numeric Violation | 13.50 pCi/L | 5.00 | +170% | Jun 2022 | Open |
| Arsenic, total [as As] | DMR, Limited - Overdue | 0.04 mg/L | 0.01 | +270% | Jun 2022 | Resolved |
| Produced water, oil and grease | DMR, Limited - Overdue | 12.00 mg/L | 10.00 | +20% | Feb 2022 | Resolved |
| Produced water, oil and grease | DMR, Limited - Numeric Violation | 12.00 mg/L | 10.00 | +20% | Feb 2022 | Open |
| Radium 226 + radium 228, total | DMR, Limited - Numeric Violation | 10.70 pCi/L | 5.00 | +114% | Jun 2021 | Open |
| Radium 226 + radium 228, total | DMR, Limited - Overdue | 20.50 pCi/L | 5.00 | +310% | Dec 2020 | Resolved |
| Radium 226 + radium 228, total | DMR, Limited - Numeric Violation | 20.50 pCi/L | 5.00 | +310% | Dec 2020 | Open |
| Produced water, oil and grease | DMR, Limited - Overdue | 908.00 mg/L | 10.00 | +8,980% | Aug 2019 | Resolved |
| Produced water, oil and grease | DMR, Limited - Numeric Violation | 908.00 mg/L | 10.00 | +8,980% | Aug 2019 | Open |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
State CWA Non Penalty AO
Clean Water Act
· Case WY-15750 · Oct 15, 2014
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